code: def test_working(self):
      assert True
  
file_path: interpret-text/test/unit/test_unified_information_explainer.py
imports: import pytest
  import numpy
  import torch
  from numpy import dot
  from numpy.linalg import norm
  from interpret_text.experimental.unified_information import UnifiedInformationExplainer
  from utils_test import get_mnli_test_dataset, get_bert_model
label_desc: Use image node_id 1 for calling the TestUnifiedInformationExplainer obj's underlying member method code with example usage: obj.test_working() without return types